NAME¶

DSCAL - DSCAL scale a vector by a constant

SYNOPSIS¶

SUBROUTINE DSCAL(N,DA,DX,INCX)

DOUBLE PRECISION DA INTEGER INCX,N DOUBLE PRECISION DX(*)

PURPOSE¶

DSCAL scales a vector by a constant.
uses unrolled loops for increment equal to one.

FURTHER DETAILS¶

jack dongarra, linpack, 3/11/78.
modified 3/93 to return if incx .le. 0.
modified 12/3/93, array(1) declarations changed to array(*)